Leonard Fournette was clocked at 22.05 mph on his 90-yard run against the Steelers on Sunday, which is the fastest among all NFL ball carriers this season. AP Photo/Fred Vuich

Not just the fastest among running backs. The fastest among anybody who has run with the ball.

And yet, Fournette wasn't impressed by how fast he was moving, even though it came on his 28th carry of the Jaguars' 30-9 victory at Heinz Field.

"I ran faster than that in college," Fournette said of his days at LSU. "It's all about getting my legs back under me. ... I ran, like, 23 mph in college, so [I'm] just trying to get my old speed back."

Fournette, who rushed for 181 yards and two TDs against the Steelers, may not be impressed, but his teammates certainly are.

"Even the guy from Kansas City?" safety Tashaun Gipson asked, referring to Hill. "See, all right then, they shouldn't have said that. Tell them don't say that. Tell them leave that stat out, because I know [Fournette] isn't as fast as that guy.

For comparison, Olympic sprinter Usain Bolt was clocked at 27.7 mph during his world-record 100-meter sprint at the IAAF World Championships in Athletics in Berlin in 2009. Bolt covered the distance in 9.58 seconds.